Stenus annularis
This record describes Stenus annularis (species). Recorded family: Staphylinidae. Recorded order: Coleoptera.
Identification and Appearance
Abdomen unmargined, 4th tarsomere deeply lobed, legs bicolored (black dominant), body strongly punctured the sole representative member of the cicindeloides group in the Nearctic (Puthz 2008)
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera (Beetles)
- Suborder
- Polyphaga
- Superfamily
- Staphylinoidea
- Family
- Staphylinidae (Rove Beetles)
- Subfamily
- Steninae
- Genus
- Stenus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
widespread, and usually common
Additional species information
Species notes from the sources
Etymology: Stenus annularis Erichson 1840
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Stenus annularis. Species-specific details appear above.
Group overview
Coleoptera is the largest order of insects with over 400,000 described species, representing ~25% of all known animal species and ~40% of all insects. In the U.S. alone, nearly 30,000 beetle species have been identified.
Ecological role of the group
Beetles are prominent decomposers, especially in forests, breaking down dead wood and recycling nutrients. As predators, they reduce populations of pest insects. Many species are also important pollinators of flowering plants.
Economic and practical significance of the group
Beetles have major economic significance: leaf beetles (Chrysomelidae) and weevils (Curculionoidea) are among the most destructive agricultural pests globally, costing billions annually, while predatory species like ladybugs provide natural pest control.
Recorded sources for this group: Britannica, Smithsonian, NCSU Entomology. Imported estimates may describe particular regions or reporting periods.
Photos of Stenus annularis (5)
Photo credits: Contributed by Boris Büche; Additional contributions by v belov
Frequently Asked Questions About Stenus annularis
What is Stenus annularis?
Stenus annularis is a species in the family Staphylinidae, within the order Coleoptera.
How do you identify Stenus annularis?
Abdomen unmargined, 4th tarsomere deeply lobed, legs bicolored (black dominant), body strongly punctured
Where is Stenus annularis found?
Range: widespread, and usually common